Fixed for building on node10+win10 and newer SPFx installed

samples/react-script-editor/package.json

@@ -5,6 +5,9 @@
     "engines": {
         "node": ">=0.10.0"
     },
+    "resolutions": {
+        "natives": "1.1.3"
+    },
     "dependencies": {
         "@microsoft/load-themed-styles": "^1.4.1",
         "@microsoft/sp-core-library": "1.4.1",
@@ -24,6 +27,7 @@
         "@microsoft/sp-webpart-workbench": "1.4.1",
         "@types/chai": "3.4.34",
         "@types/mocha": "2.2.38",
+        "@types/prop-types": "^15.5.3",
         "ajv": "~5.2.2",
         "gulp": "~3.9.1",
         "webpack-bundle-analyzer": "^2.13.1"